Fumigating device



March 729, 1932.

C. R. HUTCI -IINS FUMIGATING DEVICE Filed March 27, 1931 CLARENCE m meMar; 29, 1932,

- UNITED STATES CLARENCE R. HUTCHINS, F JERSEY CITY, NEW JERSEY rumrcamennvrcn Application filed. March 27, 1981. Serial No. 525,684.

This invention relates to improvements in fumigating-apparatus, andhasparticular refs erence to an attachment for vacuum cleaners which isutilized to disseminate insecticides.

An object of the invention is to provide an proved device of simple andpractical construction which can be attached to various known types ofvacuum cleaners and the op eration of the latter employed to disseminatean insecticide or the like contained within said device.

The above and other objects will appear more clearly from the followingdetailed de-' scription, when taken in connection with the accompanyingdrawings, which illustrate a preferred embodiment of the inventive idea.i

In the drawingsv Figure 1 is a fragmentary side elevation of aconventional type of vacuum cleaner, showing the present inventionattached to the suction plate of the cleaner; Figure 2 is an enlargedside elevation, partly in section, of the device shown in Figure 1,illustrating its adaptation to the hose connection of a cleaner;

Figure 3 is an end elevation, partly broken away, of the device; and

Figure 4 is a section on the line 44 of Figure 1'. i

The present device is "so constructed that the same may be attached toknown vacuum cleaners, either to the suction plate thereof, or to thehose connection, to which are'ors dinarily connected the variousinstrumentali ties used in connection with a vacuum cleaner. Thedrawings illustrate more or less conventionally a vacuum cleaner 5having a suction plate or connection 6 and the flexible hose 7 throughwhich air suction or exhaust passes.

The attachment, which includes the essen tial features of the presentinvention, is made of any suitable material and comprises a casing 8,preferably cylindrical in cross-sectlon,

and havlng an adapter nozzle generally indicated by the numeral 9extending from one end thereof. This nozzle is of tapered formation andcomprisesv a series of sectionslO,

, each of different diameter for snugly fitting into the hose 7 of anyparticular vacuum cleaner, the sizes of these hose varying on differenttypes of machines. ,The end of the casing adj acent theadapter 9 isconstituted by a perforated plate 11, the periphery of which is seatedin the wall of the casing, andsaid plate is provided with an opening 12of considerably larger diameter than the per forations. Said'opening isutilized for the discharge of material from the casing during certainoperations which will hereinafter be referred to, and is controlled by ashutter 13 of segmental form pivoted to the plate 11 at the centerthereofand provided with afinger piece 14 which projects through a slot15 in-the wall of the casing 8. When desired, the shutter 13 may bemoved to covering and uncovering positions relative to the opening 12 bygrasping the finger piece 14.

The other end of-the casing 8 has mounted thereon a removable closureplate 16 having a stud 17 which engages in a bayonet slot 18 formed inthe wall of the casing whereby the 1 plate may be locked in positionthereon.

This closure plate is alsoprovided with perforations19 and an opening 20similar to the opening 12 in the plate 11. This opening 20 is likewisecontrolled by a shutter 21 pivoted to the plate at 22 for movement tocovering and uncovering positions relative to the opening 20, a fingerpiece 23 projecting through a slot 24 in the plate 16 being utilized forthe purpose of adjusting said shutter.

In practice, the casing is opened by removing the closure plate 16,after which a quantity of insecticide of any kind, such as crystals, ispouredinto the casing and the plate 16 replaced. If it is desired todisseminate the crystals in theform of a spray, the device is fitted tothe suction plate of the vacuum cleaner by'means-of the adapter 9, or,in one known type of machine in which the opening in the plate is largerthan any of the sections 10 of said adapter, the device may be reversedfrom the positionshown in Figure 1 and the end of the casing carryingthe closure 1 16may be inserted into said opening. If the device ismounted as-shown in Figure l, the I 1 I opening 20 in the closure 16 iscovered and the opening 12 in the plate 11 uncovered to permit of egressof the crystals through the latter opening when the vacuum cleaner ismoj ' operating and a suction is being created by the fan of themachine. In other words, the operation of the fan draws air through therfor'ations in the plates 16 and 11 and therey creates sufficientsuction to agitate the crystals within the casing and draw them throughthe opening 12. The'secrystals are then finely-comminuted by passagethrough v the fan and are discharged through the hose 7 in the form of aspray. .Should the device be mounted in the reverse position from thatshown in Figure 1-, the same action takes place and, in this instance,the opening'12 is covered while the shutter 21 is adjusted to uncoverthe opening 20 for the passage of the crystals from the casing to thefan. When it'is desired to simply utilize'the odor of the insecticide orother material within the casing 8 for fumigation, the device is re-*moved from the suction plate and the adapter inserted into the free endof the hose 7in' the same manner that various attachments of avacuumcleaner are now mounted in mg and uncovering pivotedon each plateand movable'to coverpositions relative to the opemng in said plate.

In. testimony whereof, I have aflixed my signature. CLARENCE R;HUTCHINS.

position. When thus attached, the shutters 13 and 21 are both adjustedto cover their respective openings so that there will be no discharge ofthe material from the casing, but

the current of air which is. blown through the a I perforations in theplates at the two ends of the casing will carry with it the fumes fromthe material in said casing.

What is claimed is: I

1. In a fumigating device adaptedfor attachment to a vacuum cleaner, acasing for containing an' insecticide, a plate forming one end of saidcasing and having perforations for the passage ofair, and further having'an open ng for. the passa e of the insecticide, and means to cover anuncover said opening.

2. In a containing an insecticide, perforated plates uncover saidopenings. I

device. adapted for at-.

forming the ends of said casing and each provided with an opening largerthan the perforations therein, and means to cover and 3. In'a fumigatingtachinentto a vacuum cleaner,-a casin for containing an insecticide,perforated p ates forming the ends of said casing andeach provided withan opening larger'than the uncovering perforations. therein, and ashutter pivoted on each plate and movable to covering and positionsrelative toathe opening in saidpla 4. In a forming one end of saidcasing and having an openin' therein, means extending from fumigatingdevice adapted for atv tachment to a vacuum cleaner, a casing forfumigating device adapted ifor attachment to a vacuum cleaner, acasingfor containing an insecticide, a perforated plate said end 0 the casingior attachin the device 7

